Removed test helper for non-existing test
Revert "Removed test helper for non-existing test"

This reverts commit 0a7da38a55845f825c9bee4e507bad6ea4a06eb5.
Updating .gitignore
First minimum viable product. Includes:
 * Hardcoded problems
 * Basic random chooser
 * Intial UI prototype
Shortened name of IMultipleChoiceProblem to IMcProblem